Sonic scalp brush



FIG. 1 is a top, front and left side perspective view of a bath brush showing my new desgn;

FIG. 2 is a bottom, rear and right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the sonic scalp brush that form no part of the claimed design. 

CLAIM The ornamental design for a sonic scalp brush, as shown and described. 